easYgen-3500XT-P2-K58 8440-2318

When the engine is operated at idle speed, undervoltage, underfre

quency, and underspeed monitoring as well as the monitoring of

the flexible limits 33 through 40 are not performed.

This function allows for a controlled operation of an engine without

alarm messages at a lower speed (below the configured under

speed monitoring values) for e.g. a warm-up operation with low

emission.

The frequency controller output does not control the idle speed; it

will remain in initial state position. The GCB cannot be closed in

idle mode.

A message may be output to a relay here using the LogicsManager

(Idle mode is active, command variable 04.15), e.g. as a signal for

a speed controller. The display indicates “Idle run active” during

idle mode.

Parameter CL Setting range

[Default]

Description

12570 Auto idle mode 2 Determined by

LogicsManager

86.20

[(0 & 1) ≥1 0]

= 15719

Once the conditions of the LogicsManager have been fulfilled the engine will

be operated in idle mode automatically for the configured time during start-up.

Monitoring is limited as described above.

This function may always be configured to “1” for example.

Notes

For information on the LogicsManager and its default settings see Ä Chapter

9.3.1 “LogicsManager Overview” on page 860.

12550 Constant idle

run

(Continuous idle

mode)

2 Determined by

LogicsManager

86.14

[(0 & 1) & 0]

= 10713

8440-2318

As long as the conditions of the LogicsManager have been fulfilled the engine

will be continuously operated in idle mode. Monitoring is limited as described

above. A key switch via a DI may be configured here for example.

Notes

The idle mode is blocked if the GCB is already closed.

For information on the LogicsManager and its default settings see Ä Chapter

9.3.1 “LogicsManager Overview” on page 860.

Parameter CL Setting range

[Default]

Description

3328 Automatic idle

time

(Time for auto

matic idle mode)

2 1 to 9999 s

[30 s]

The automatic idle mode is active for the time configured here. Monitoring is

limited as described above during this time.

3329 During emer

gency / critical

(Idle mode pos

sible during

emergency /

critical opera

tion)

2 Yes If an emergency or critical operation is enabled, the engine will go to rated

speed only after completing the configured idle mode.

[No] If an emergency or critical operation is enabled, no idle run will be performed.

The engine will go directly to rated speed

The generators are paralleled together by closing their circuit

breakers during the engine start sequence. Then after a certain

speed is achieved the voltage regulators are enabled and the gen

erators will produce voltage. The run-up synchronization method is

used to get several synchronous generators onto load in a very

short time. This time is determined by the engine start time and the

AVR on-excitation

Programmable–The discrete input has been assigned a default function

using either the LogicsManager or preconfigured alarms

such as “emergency stop”.– The following sections describe how these functions are

assigned.– The function of a discrete input can be changed if required.– The following description of the inputs, labeled with “pro

grammable”, refers to the preconfiguration.

n Fixed– The discrete input has a specific function that cannot be

changed depending upon the configured application mode